General Physics I First Quarter Exam

Which prefix represents 10^-6?

• centi-

• micro-

• milli-

• nano-

One gigabyte (GB) is equal to how many bytes?

• 10^3

• 10^6

• 10^9

• 10^12

How many quarts are there in one gallon?

• 2

• 4

• 6

• 8

How many feet make up one yard?

• 3

• 6

• 9

• 12

Which term refers to how close a measurement is to the true or accepted value?

• Accuracy

• Error

• Precision

• Validity

Which term refers to how close repeated measurements are to one another, regardless of correctness?

• Accuracy

• Error

• Precision

• Validity

Which of the following describes a measurement that is both accurate and precise?

• Results are close to the accepted value but scattered widely.

• Results are far from the accepted value but tightly grouped.

• Results are close to the accepted value and are consistent.

• Results are neither close to the accepted value nor consistent.

This usually results from the experimenter's inability to take the same measurement in exactly the same way to get exactly the same number.

• Absolute error

• Percent error

• Random error

• Systematic error

Systematic errors lead to a lack of:

• accuracy in measurement

• precision in measurement

• timing on its reaction time

• significant digits in measurement

When repeating an experiment, a student notices that measurements vary slightly due to unpredictable factors like temperature changes or reaction time. This type of error is called:

• Human error

• Random error

• Systematic error

• Calculation error